Product Overview

The Bently Nevada 991-25-70-01-05 Thrust Transmitter is a highly reliable and compact solution designed specifically for OEM compressor and pump applications. This loop-powered thrust transmitter efficiently converts proximity probe signals into a standardized 4-20mA output for precise axial displacement monitoring. With an integrated Proximitor sensor, the device eliminates the need for additional conditioning units while providing dynamic vibration diagnostics through its PROX OUT terminals, making it an ideal choice for installations where space is limited.

Technical Specifications

• Model Number: 991-25-70-01-05

• Module Type: Thrust Transmitter

• Manufacturer: Bently Nevada

• Condition: Brand New

• Weight: 0.5 kg

• Dimensions: 10 cm x 6.2 cm x 7.5 cm

• Lead Time: In Stock

• HS CODE: 8537101190

• Product Origin: USA

• System Compatibility: TSI

• Communication Service: Ethernet Router

• Output Signal: 4-20mA

• Cable Systems Supported: 5m and 7m

• Humidity Rating: 100% condensing humidity

Model Code Breakdown

The model number 991-25-70-01-05 highlights specific characteristics of the thrust transmitter:

• 991: Indicates this product is part of the Bently Nevada thrust transmitter series, known for quality and reliability.

• 25: Represents a particular configuration tailored for applications in compressors and pumps.

• 70: Denotes the specific model version, optimized for high performance and diagnostic capabilities.

• 01: Indicates design revisions or certain functional capabilities that enhance user experience.

• 05: Could represent additional specifications or enhancements that distinguish this model from others in the range.

Installation Recommendations and Wiring Guide

For optimal performance of the Bently Nevada 991-25-70-01-05 Thrust Transmitter, follow these installation guidelines:

1. Installation Location: Choose a location that minimizes mechanical strain and provides access for maintenance and monitoring.

2. Wiring: Connect the 2-wire loop-powered system securely while ensuring good contact for reliable operation. Use protective measures against electrical noise to maintain signal integrity.

3. Integration: Make sure to utilize compatible 3300 NSv proximity probes and consider the cable lengths available (5m or 7m) for your installation needs.

4. Verification and Calibration: Utilize the test input pin for loop verification with a DC voltage source, and confirm zero/span adjustments in the field without the need for recalibration.

FAQ

1. What is the primary function of the Bently Nevada 991-25-70-01-05?
   It converts proximity probe signals into a 4-20mA output for accurate thrust monitoring in industrial applications.

2. What are the dimensions and weight of the transmitter?
   The transmitter measures 10 cm x 6.2 cm x 7.5 cm and weighs approximately 0.5 kg.

3. Is it suitable for use in humid environments?
   Yes, it is designed to operate reliably in conditions with 100% condensing humidity.

4. What type of output does this transmitter provide?
   It delivers a standard 4-20mA output, compatible with various control systems.

5. What features help prevent false alarms in this transmitter?
   It includes a power-up inhibit circuit and a Not OK/Signal Defeat function to avoid false readings due to probe faults.